Horseshoe.



PATENTED MAY 29, 1906.

A. G. ALBRO.

HORSESHOE.

APPLICATION FILED FEB.21. 1900 whine was '7 m $3 M V the plane indicated by the line 2 2 of Fig. 1

ifl l il i s rarss fear enrich,

Specification of Letters Patent.

ratenteu May 29, 1906.

Application filed February 21. 1906. Serial No. 302,223

To all Ill/1107M it may concern.-

Be it known that I, ALMON G. ALBRO, a citizen of the United States, residing at Corry, in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Horseshoes, of which the following is a specification.

My invention pertains to horseshoes of the removable-calk type; and it contemplates the provision of a horseshoe embodying sim le and ellicient means which may be depen ed on to preclude casual movement and displacement of a calk while the'shoe is in use and'yct is adapted to permit of the calk being quickly and easily removed and replaced with a new calk when necessit demands.

With the foregoing in min the invention will be fully understood from the following description and claim when taken in connection with the accompanying drawin s, forming part of this specification, in whic Figure 1 is an inverted plan view of the horseshoe constituting the present and referred embodiment of my invention. Fig. 2 is a longitudinal section of the same, taken in and showing the manner in which the toecalk is secured in its holder. Fig. 3 is an enlarged detail section taken in the plane in'di' cated by the line 3 3 of Fig. 1 and illustrating themanner in which the heel-calks are secured in their holders, and Fig. 4 is an enlarged perspective view of the toe-calk as the same ap ears when removed from the body of the s cc.

Similar letters. designate corresponding parts in all of the views ofthe drawings, referring to which A is the body, of my novel horseshoe. The said body is of the usual configuration and is preferably, thou h not necessarily, provided with the usua nail-holes a. It is also provided with an inte ral holder B for a toecalk and inte ral holders C for heel-calks. These calk-holdcrs are each provided with longitudinal grooves I), which are of dovetail form in cross-scction and are open at their op osite ends, as shown in Fig. 1. Each cal 'holdcr is further provided in the under portion of one side wall of its groove 1) with an indentation l), the inner wall I) of which protrudes into. the groove b and is designed to serve an important function hereinafter pointed out in detail.

F is the toe-calk of the shoe, and G G are the heelwalks. 'lhese calks l! and Gare of groove H, as shown dovetail form in cross-section to permit of their being moved endwise into and out of,

the grooves b in their respective holders, and

each is provided in one of its sides with a depression, preferably in the form of a vertical and C, and the toe and heel calks are moved endwise into the grooves of their respective holders until they rest: in the relative posi tions shown in Fig. 1. Then when the groove H of each calk is opposite the indentation D of the calk-holder complementary to iihs calk a punching implement is placed in the indentation and struck one or'more blows designed to receive thewith a hammer or the like, when, as will be readily apparent, the inner wall E of the indentation D will be caused to enter and rest in the groove H of the calk and in that Way effectually prevent casual endwise move-- ment or displacement of the calk. It will be noticed, however, that whenthe en'd'rof the calk is'struck one or more blows with a hammer or the like the said proti uding wall E of the indentation D will give butwardly, and thereby perinit of the endwise movement of the calk out of its holder and the placing of a new calk in the holder. After the lacing of the new calk the punching imp ement' is placed in the indentation D and struck one or.

more blows in order to position the wall E of the indentation in the groove H of the new calk. From this it wiifbe gathered thatl the inner wall E of the indentation in combina tion with the groove in the calk will effectually prevent accidental movement or dis lacement of the calk and yet will not interiere with the removal of the calk when the same is worn and the placing and fastening of a new calk in the holder.

It will be observed that the vertical groove H, extending throughout the height of each' calk, serves by showing below the calk-holder to enable the party practicing my invention to readily position the upper portion of the groove to receive the inner wall of the indentation in the calk-holder.

An im ortant feature of my invention consists in t 10 utilization of a part of the body A to fasten each calk-i. 6., the fastening of the calk without the employment of an ex- ICC traneous device such as is liable to casually I have specifically described the construction and relative arrangement of the parts embraced in the present and preferred embodiment of my invention in order to impart a definite understanding of the said embodiinent. I do not desire, however, to be understood as confining mysel'fto the said specific construction and relative arrangement of parts, as such changes or modifications may obviously be made in practice as fairly fall within the scope oi my invention as claimed.

Having described my invention, what I claim, and desire to secure by Letters Patent, is

In a horseshoe, a calk of dovetail form in cross-section having a vertical groove H in one of its sides extending throughout its height, in combination with a calk-holder having a groove of dovetail form in cross-section in its under side into which the calk is introduced endwise and also having an indentation in the under portion of one of the side walls of the groove; the inner wall of the said indentation protruding into the groove of the holder and restingin the vertical groove of the calk.

ALMON G. ALB B0.

In presence of M. W. SMITH, V. L. PowERs. 

